34 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 81 



lobed ovary extends nearly across the caudal end of the segment. The 

 proximal portion of the oviduct is enlarged to form the so-called 

 occapt. The oviduct makes two or three turns in the interovarian 

 space before running anteriorly to the uterus. These coils of the 

 oviduct form the ootype and are surrounded by a very diffuse shell 

 gland, that can not be seen readily in whole mounts. The uterus 

 extends from the ovary up the midline to the cephalic boundary of 

 the segment. It has from 30 to 60 diverticula on each side. The 

 vitellaria occupy the typical position for the genus. In a sectioned 

 mature segment a very weakly developed layer of longitudinal 

 muscle fibers could be seen. The relationship between these and the 

 genital organs is in every way normal for the genus Protocephalus as 

 defined by Woodland (1925). Ripe segments are lacking. 



Host. — Farancia dbacura. 



Habitat. — Intestine. 



Localities. — New York Zoological Gardens, New York City, and 

 Houston, Tex. 



Speciiiiens.—V.^.'^.M. Helm. Coll. No. 30896. 



Remarks. — The most striking character of this worm is the large 

 number of testes. The only rival in this respect is P. gerrardii 

 (Baird), from which it differs in the shape of the suckers. 



PBOTEOCEPHALUS sp. 



An immature specimen of this genus was removed from the in- 

 testine of Anolis carolinensis. Although several specimens of the 

 host have been examined, this tapeworm has not been encountered a 

 second time. Because no mature segments are present no descrip- 

 tion is attempted. 



PROTEOCEPHALUS sp. 



A single tapeworm of this genus, but without mature segments, 

 has been removed from the intestine of Terrapene Carolina triunguis. 



Family ANOPLOCEPHALIDAE Cholodkowsky, 1902 



Genus OOCHORISTICA Luhe, 1898 



This rather large genus has hitherto been known from all the 

 principal land masses except North America, but I have found it 

 common in a number of species of snakes and lizards in Texas and 

 have found it advisable to recognize five distinct species. As in 

 many other tapeworm genera, classification is difficult because of the 

 paucity of characters and the great individual variation that exists 

 in the few characters present. The classification of the forms con- 

 sidered below is further complicated by the limited material, and 



